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jspecify-nullness

100 / 100 · Low risk

Fine to try.

By alexandru/skills (GitHub) · other · 51 stars · scanned at commit 1361a8f

JSpecify nullness annotations for Java APIs and tooling. Use when adopting or migrating JSpecify annotations, designing null-safe Java signatures, fixing generic bounds and type-use placement, or interpreting Kotlin interop, annotation-processor, and tool-conformance behavior.

Works with any agent that supports SKILL.md skills.

What this skill can do

We found nothing in the files we read that matches our rules. That does not prove the skill is safe: see the limits of static scanning.

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'jspecify-nullness' ] || [ -L ~/.agents/skills/'jspecify-nullness' ]; then echo 'A skill folder named jspecify-nullness already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/alexandru/skills' "$d" && git -C "$d" checkout --quiet '1361a8f6801e9f7e6f7305de641453a6c6640760' -- 'skills/coding/jspecify-nullness' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/coding/jspecify-nullness' ~/.agents/skills/'jspecify-nullness' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'jspecify-nullness' ~/.claude/skills/'jspecify-nullness' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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